Forecast Details for Sumner, IA

Recent Locations: Proctorsville, VT Table Grove, IL Sumner, IA

This Afternoon: Partly sunny, with a high near 44. South southeast wind around 13 mph, with gusts as high as 18 mph.

Tonight: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 37. Windy, with a south southeast wind 13 to 22 mph, with gusts as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 66. Windy, with a south wind 23 to 33 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy during the early evening, then gradual clearing, with a low around 35. West southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 54. Northwest wind 6 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Mostly sunny, with a high near 55.

Friday Night: Mostly clear, with a low around 36.

Saturday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 59. Breezy.

Saturday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 51. Breezy. Chance of precipitation is 60%.

Sunday: Showers likely. Mostly cloudy, with a high near 70. Windy. Chance of precipitation is 70%.

Sunday Night: Showers likely. Mostly cloudy, with a low around 59. Windy. Chance of precipitation is 60%.

Monday: A 50 percent chance of showers. Partly sunny, with a high near 75. Windy.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation